Why this formula works
Tuna should be drained but not squeezed into dry sawdust. Forty grams of mayonnaise, lemon and smoked paprika bind the flakes so the fish survives a short late bake; 130 g thick tomato makes the pizza genuinely juicy. Cold-soaked onion loses harshness, capers bring salinity, and reserved chili, lemon and parsley restore contrast after melting.
Honest timing
| Active preparation | 20 min |
| Hydration / proof / preheat | 1 h |
| Cooking / baking | 9 min |
| Elapsed total | 1 h 29 min |
Ingredients
- mature room-temperature pizza dough ball280 g (9.9 oz)
- thick unsalted pizza tomato sauce130 g (4.6 oz)
- low-moisture mozzarella, coarsely grated130 g (4.6 oz)
- canned tuna in spring water, drained weight180 g (6.3 oz)
- full-fat mayonnaise containing egg and mustard40 g (1.41 oz)
- red onion, sliced into thin half-rings70 g (2.47 oz)
- small capers, rinsed and drained25 g (0.88 oz)
- fresh lemon juice, divided20 g (0.71 oz)
- flat-leaf parsley, chopped15 g (0.53 oz)
- chili flakes, divided2 g (0.07 oz)
- smoked paprika1.5 g
- coarsely ground black pepper1 g
Equipment
- fine sieve
- mixing bowl
- clean towel
- pizza steel or stone
- pizza peel
- digital scale
- rack
Exact method
- 1. Preheat the selected baking surface according to the table below. Drain tuna in a sieve for 10 minutes, pressing only lightly; weigh 180 g after draining.
- 2. Soak onion in ice water for 10 minutes. Drain and blot completely dry. Rinse and dry capers.
- 3. Fold tuna with mayonnaise, 10 g lemon juice, 1 g chili flakes, smoked paprika and half the pepper. Keep recognizable flakes rather than mashing it into paste.
- 4. Open the 280 g dough to 30–32 cm with a 1.5–2 cm rim. Move to a lightly dusted peel and confirm it slides.
- 5. Spread all 130 g tomato and add mozzarella. Bake for roughly half the matching time below so the center begins to set.
- 6. Distribute the tuna mixture in loose walnut-size clusters. Add dry onion and capers, then finish baking until cheese bubbles, tuna edges just color and the underside is brown; on steel allow another 3–4 minutes.
- 7. Rest on a rack for 60 seconds. Add the remaining 10 g lemon juice, 1 g chili flakes, parsley and remaining pepper.
- 8. Cut into eight narrow slices. The center should stay juicy from tomato and bound tuna but show no watery runoff.
How to know it is ready
- Tuna remains in moist flakes with lightly browned edges.
- Mozzarella bubbles around the fish without burying it.
- Onion has softened but retains a fresh snap.
- The tomato-rich center lifts without releasing red water.
Troubleshooting
- Dry tuna: it was squeezed hard, overmixed or baked for the full crust time.
- Wet center: use thick tomato, drain tuna for 10 minutes and dry onion and capers.
- Salty finish: rinse capers and do not add salt before tasting the canned fish.
- One-note heat: split chili between the tuna mix and fresh post-bake finish.
How to adapt the base recipe
- For a sharper diner-style melt, replace 30 g mozzarella with mature cheddar; milk allergen remains.
- For less heat, use 0.5 g chili in the tuna and none after baking, keeping paprika for depth.
- For 28 cm, use 250 g dough, 105 g tomato, 105 g mozzarella and 150 g drained tuna.
Storage and food safety
Serve promptly. Refrigerate within 2 hours for up to 2 days. Reheat uncovered until the center is steaming and add fresh lemon and parsley afterward; do not leave mayonnaise-bound tuna at room temperature.
Allergens
Egg, Fish, Gluten (wheat), Milk, Mustard Depending on the selected product, may also contain: Sulphites.
Always verify every label and cross-contact risk; brand formulations can change.