34 Mayfair
Grosvenor Square 34, W1K 2HD London
Open now · until 00:00
€€€€
Menu
Source: the restaurant's website, read on 11 September 2026. Prices and dishes may have changed since.
Calories and carbohydrates are estimates by an AI model based on this menu, made on 11 September 2026, for a typical portion. They are not medical advice and do not replace what the kitchen can tell you. "Diabetes-friendly" means: modest carbohydrates for the course, little sugar and no fast-absorbing base such as fries, white bread or white rice.
STARTERS
Chilled green gazpacho soupvegetarian
13.50
Green gazpacho soup — charred cucumber & lime salsa
estimate≈ 180 kcal18 g carbsdiabetes-friendlybalanced 76
Nduja mussels on toast
17.00
lemon & Calabrian chilli butter with ‘nduja & Amalfi lemon butter
estimate≈ 480 kcal28 g carbs
Tuna crudo
19.50
jalapeño, avocado & seaweed cracker with grilled baguette
estimate≈ 320 kcal22 g carbsdiabetes-friendlybalanced 65
Steak tartare
30.00
with crispy bacon & maple syrup or seasonal berries
estimate≈ 450 kcal12 g carbsdiabetes-friendly
34 Shrimp cocktail
19.00
Shrimp cocktail — avocado, Marie Rose sauce
estimate≈ 350 kcal12 g carbsdiabetes-friendlybalanced 70
Sticky tiger prawns
35.00
bang bang peanut dressing & BBQ pineapple
estimate≈ 420 kcal25 g carbs
34 Caesar salad
15.50
Caesar salad — smoked garlic & parmesan dressing
estimate≈ 380 kcal12 g carbsdiabetes-friendlybalanced 69
Scottish smoked salmon
17.50
estimate≈ 220 kcal4 g carbsdiabetes-friendlybalanced 67
Burrata Pugliese (v)vegetarian
19.50
Burrata Pugliese — early summer tomatoes & grilled peaches with white citrus balsamic dressing
estimate≈ 450 kcal22 g carbs
Coal roasted Romano courgettes (v)vegetarian
18.00
Roasted Romano courgettes — whipped Tomino cheese, globe artichokes & Aleppo chilli viniagrette
estimate≈ 380 kcal14 g carbsdiabetes-friendlybalanced 69
MAINS
Double stuffed Ravioli (v)vegetarian
22.00
Stuffed Ravioli — roasted Romano courgette & Piedmont ricotta with grilled focaccia, whipped tomino cheese
estimate≈ 650 kcal60 g carbs
34 Cheeseburger
28.00
Cheeseburger — Wagyu and Black Angus patty (180g), Red Leicester cheese, onion jam, smoked pickles & Club sauce
estimate≈ 950 kcal45 g carbs
Chargrilled seabasspescatarian
32.00
fragrant tomato sauce, almond ajo blanco & green datterini
estimate≈ 420 kcal18 g carbsdiabetes-friendlybalanced 74
Grilled spiced pork sausage
16.50
Grilled pork sausage — chimichurri & smoked pipara peppers
estimate≈ 550 kcal12 g carbsdiabetes-friendlybalanced 74
Seared scallops in the shellpescatarian
26.00
Seared scallops — brown butter & Tuscan lardo
estimate≈ 480 kcal10 g carbsdiabetes-friendlybalanced 71
Seared tuna steak (180g)pescatarian
38.00
Seared tuna steak — summer vegetable escabeche & carosello cucumber
estimate≈ 380 kcal15 g carbsdiabetes-friendlybalanced 75
BRUNCH
Pancakes
15.00
with crispy bacon & maple syrup or seasonal berries
estimate≈ 750 kcal85 g carbs
Eggs Florentinevegetarian
14.00
English muffin, sautéed garlic spinach, two poached eggs, Hollandaise sauce
estimate≈ 520 kcal30 g carbsdiabetes-friendlybalanced 65
Eggs Benedict
16.00
English muffin, Prosciutto cotto, two poached eggs, Hollandaise sauce
estimate≈ 580 kcal30 g carbsdiabetes-friendlybalanced 66
Eggs Royalepescatarian
18.00
English muffin, Scottish smoked salmon, two poached eggs, Hollandaise sauce
estimate≈ 560 kcal30 g carbsdiabetes-friendlybalanced 66
Buttermilk fried chicken burger
23.00
Fried chicken burger — kimchi mayonnaise, smoked pickles & lollo rosso lettuce
estimate≈ 850 kcal45 g carbs
Grilled spiced pork sausage & scrambled egg
16.50
Sausage and scrambled eggs
estimate≈ 620 kcal8 g carbsdiabetes-friendlybalanced 71
Turkish eggsvegetarian
18.50
spiced tomato relish, smoked garlic labneh, pickles, soft herb salad & grilled flatbread
estimate≈ 580 kcal42 g carbsdiabetes-friendlybalanced 69
French toastvegetarian
14.00
caramelised banana, toffee sauce & vanilla ice cream
estimate≈ 920 kcal95 g carbsheavy 39
SUNDAY ROAST
Roast Black Angus sirloin
36.00
served with Yorkshire pudding, duck fat roast potatoes, root vegetable puree, cauliflower & leek gratin, buttered seasonal greens, glazed heritage carrots & gravy
estimate≈ 1200 kcal65 g carbs
Free range rotisserie chicken
30.00
Rotisserie chicken — with sage & onion stuffing, served with Yorkshire pudding, duck fat roast potatoes, root vegetable puree, cauliflower & leek gratin, buttered seasonal greens, glazed heritage carrots & gravy
estimate≈ 1050 kcal60 g carbsbalanced 66
STEAKS
Fillet (200g)
52.00
Fillet steak
estimate≈ 450 kcal0 g carbsdiabetes-friendlybalanced 71
Sirloin (300g)
40.00
Sirloin steak
estimate≈ 680 kcal0 g carbsdiabetes-friendlybalanced 71
Rib-Eye (330g)
42.00
Rib-Eye steak
estimate≈ 820 kcal0 g carbsdiabetes-friendlybalanced 68
Dry-aged Bone-in Rib-Eye (450g)
54.00
Bone-in Rib-Eye steak
estimate≈ 1100 kcal0 g carbsdiabetes-friendly
Wagyu Picanha (300g)
45.00
Wagyu Picanha
estimate≈ 750 kcal0 g carbsdiabetes-friendlybalanced 71
Wagyu Denver (200g)
70.00
Wagyu Denver steak
estimate≈ 550 kcal0 g carbsdiabetes-friendlybalanced 71
TO SHARE
Roasted Black Angus Chateaubriand
95.00
Roasted Chateaubriand — for 2 persons
estimate≈ 1600 kcal0 g carbsdiabetes-friendlyheavy 37
Whole free range rotisserie chicken
65.00
Whole rotisserie chicken — with grilled Welsh rarebit bone marrow with sage & onion stuffing (for 2/3 persons)
estimate≈ 2200 kcal40 g carbsdiabetes-friendly
SIDES
Spinach, garlic, olive oil (v)vegetarian
7.50
Spinach with garlic
estimate≈ 120 kcal6 g carbsdiabetes-friendlybalanced 66
Butterleaf salad, radish, datterini tomatoes & citrus dressing (vg)vegan, vegetarian
7.50
Butterleaf salad
estimate≈ 110 kcal8 g carbsdiabetes-friendly
Chips or heritage potatoes (v)vegetarian
7.00
Chips
estimate≈ 450 kcal48 g carbs
Creamed mashed potatoesvegetarian
6.75
Mashed potatoes
estimate≈ 280 kcal22 g carbsdiabetes-friendly
Creamed sweetcornvegetarian
7.00
jalapeño & spring onion (v)
estimate≈ 180 kcal15 g carbsdiabetes-friendly
Grilled bone marrow with garlic and herbs
12.00
Grilled bone marrow — lemon & wild oregano
estimate≈ 400 kcal4 g carbsdiabetes-friendly
Crispy pink fir potatoesvegetarian
7.00
Pink fir potatoes
estimate≈ 220 kcal24 g carbsdiabetes-friendly
Charred broccoli, vegan XO dressing, crispy rice (vg)vegan, vegetarian
7.50
Charred broccoli
estimate≈ 180 kcal15 g carbsdiabetes-friendlybalanced 70
ADD-ONS
Seared Foie Gras
15.00
estimate≈ 350 kcal2 g carbsdiabetes-friendly
Grilled Tiger Prawns (3)pescatarian
14.00
Grilled Tiger Prawns
estimate≈ 180 kcal4 g carbsdiabetes-friendlybalanced 79
SUMMER SET MENU
Two courses
29.00
Summer Set Menu
estimate≈ 800 kcal60 g carbsbalanced 76
STARTERS
Mozzarella di Buffalo (v)vegetarian
Mozzarella di Buffalo — grilled French beans, pistachio & lemon
estimate≈ 320 kcal8 g carbsdiabetes-friendlybalanced 66
Chilled green gazpacho soup (v)vegetarian
Green gazpacho soup — charred cucumber & lime salsa
estimate≈ 150 kcal18 g carbsdiabetes-friendlybalanced 72
Summer tomato & watermelon (v)vegetarian
Summer tomato & watermelon — whipped Tomino curd with mixed leaves pesto & 34 vinaigrette
estimate≈ 280 kcal15 g carbsdiabetes-friendlybalanced 66
MAINS
Fillet of Sea Basspescatarian
with Sicilian caponata & basil aoli
estimate≈ 450 kcal18 g carbsdiabetes-friendlybalanced 78
Rotisserie chicken
grilled maitake mushroom, charred with grilled artichoke & basil pesto
estimate≈ 550 kcal12 g carbsdiabetes-friendlybalanced 78
Summer courgette risotto
Summer courgette risotto with chicken — sweetcorn & chicken butter sauce
estimate≈ 680 kcal65 g carbsbalanced 67
SIDES
Spinach. garlic, olive oil (v)vegetarian
7.50
Sautéed spinach with garlic
estimate≈ 120 kcal6 g carbsdiabetes-friendlybalanced 66
add onion gravy
2.00
Onion gravy
estimate≈ 60 kcal8 g carbsdiabetes-friendly
Crispy Jersey Royal potatoesvegan
7.00
crispy rice (vg)
estimate≈ 250 kcal30 g carbs
Charred broccoli, vegan XO dressing, lemon & wild oreganovegan
7.50
Charred broccoli with vegan XO dressing
estimate≈ 160 kcal12 g carbsdiabetes-friendlybalanced 70
weekend brunch
pancakes with crispy bacon & maple syrup
Pancakes with bacon and maple syrup
estimate≈ 850 kcal80 g carbsheavy 38
Eggs Benedict with croissant & smashed avocado
Eggs Benedict with croissant and avocado
estimate≈ 720 kcal45 g carbsdiabetes-friendlybalanced 74
baked French toast with caramelised banana
estimate≈ 650 kcal70 g carbs
Set Menu
Mozzarella di Buffalovegetarian
Buffalo Mozzarella with pesto — with grilled French beans, pistachio & lemon pesto
estimate≈ 320 kcal8 g carbsdiabetes-friendlybalanced 66
Is this menu still right?
70veggie
scoreestimate
scoreestimate
Diverse vegetarian options
How well a vegetarian eats here, read from the menu. Not a review score.
The menu includes dishes like Burrata Pugliese and Double stuffed Ravioli. Vegan options are limited to sides such as charred broccoli with vegan XO dressing.
21 vegetarian and 4 vegan dishes out of 59
84dia
scoreestimate
scoreestimate
Protein-rich choices and steaks
How well someone with diabetes eats here, from the menu and estimated carbohydrates. Not medical advice.
The menu offers many low-carb meat and fish options. Steaks and grilled dishes are very suitable.
43 diabetes-friendly · 59 dishes
Reviews
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Practical
- Address
- Grosvenor Square 34, W1K 2HD London
- Hours
- Mon12:00–00:00Tue12:00–00:00Wed12:00–00:00Thu12:00–00:00Fri12:00–00:00Sat11:00–00:00Sun11:00–22:00
- Contact
- +02033503434
- Sources
- Overture Maps Places (CDLA-Permissive 2.0), 34-restaurant.co.uk/
- Record
- completeness 83 %, confidence 94 %