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Vegan Tomato and Mustard Tart

Vegan Tomato and Mustard Tart

French
Jump to Recipe
85 minutes
4 people
Hardover 60 min or 12+ steps

85 min · 9 steps

Hard: over 60 min or 12+ steps

485 kcalper person
Protein 9g
Carbs 52g
Fats 27g

About this dish

A Dijon mustard base replaces the traditional crème fraîche, acting as both flavour anchor and moisture barrier — the single technique that stops the pastry going soggy and concentrates the tomato's sweetness.

Allergy Info

Gluten, Mustard

Diet Info

Vegan

Ingredients

Fresh Produce

  • Mixed heritage tomatoessliced 5mm thick700 g
  • Fresh thyme leavespicked1 tsp
  • Fresh rosemaryfinely chopped1 tsp
  • fresh basil leavesto finish10 g

Dairy & Eggs

  • Vegan buttercold and cubed120 g

Tins & Jars

  • Capersdrained1 tbsp

Dried Goods

  • Plain flour250 g
  • Nutritional yeast2 tbsp

Spices & Seasonings

  • Fine sea saltdivided1 tsp
  • Flaky sea salt1 tsp

Oils & Condiments

  • Dijon mustard4 tbsp
  • Wholegrain mustard2 tbsp
  • Olive oilplus extra for drizzling2 tbsp
  • Maple syrup1 tsp

Other

  • Ice-cold water4-5 tbsp

Utensils

  • Wire rack
  • Baking tray
  • Rolling pin
  • Mixing bowl

Method

1

Combine the flour and ½ teaspoon fine sea salt in a large bowl. Add the cold cubed vegan butter and rub it into the flour with your fingertips until the mixture resembles coarse breadcrumbs with some pea-sized pieces remaining. Add ice-cold water one tablespoon at a time, mixing with a fork just until the dough comes together.

Approx. 8 minutes
2

Shape the dough into a flat disc, wrap tightly and refrigerate for at least 1 hour.

Approx. 2 minutes
3

Lay the sliced tomatoes in a single layer on a wire rack set over a baking tray. Sprinkle with the remaining ½ teaspoon flaky sea salt and leave to drain for 30 minutes, then pat dry firmly with kitchen paper.

Approx. 5 minutes
4

Preheat your oven to 200°C (fan 180°C or 400°F). On a lightly floured surface, roll the chilled pastry into a rough 30cm circle about 3mm thick. Transfer to a parchment-lined baking tray.

Approx. 10 minutes
5

In a small bowl, mix together the Dijon mustard, wholegrain mustard, nutritional yeast, thyme, rosemary, olive oil and maple syrup until smooth. Spread evenly over the pastry, leaving a 3cm border all around.

Approx. 5 minutes
6

Scatter the capers over the mustard base, then arrange the dried tomato slices in overlapping concentric circles on top.

Approx. 6 minutes
7

Fold the pastry border up and over the edge of the tomatoes, pleating as you go, to form a rustic galette crust. Drizzle the exposed tomatoes lightly with olive oil.

Approx. 5 minutes
8

Bake on the middle shelf for 40–45 minutes until the crust is deep golden and the tomatoes are collapsed, caramelised at the edges, and beginning to blister — the base should sound hollow when tapped.

Approx. 42 minutes
9

Remove from the oven and allow to rest for 10 minutes before scattering with fresh basil leaves.

Approx. 2 minutes