Mushroom and Onion Tart - OGGS®

Ingredients

• 1 x 320g vegan ready-rolled puff pastry sheet
• 2 tbsp olive oil
• 500g red onions, halved lengthways, peeled, sliced into thin wedges
• 200g chestnut mushrooms, cut into chunky slices, halved if small
• Generous grinding of black pepper
• 75g dairy-free cream cheese
• 11/2 tsp Dijon mustard
• 1/4 tsp sea salt, plus a pinch
• 2 tbsp self-raising flour
• 1/4 tsp baking powder
• 4 tbsp dairy-free milk
• 1 tbsp chopped tarragon leaves
• 100ml OGGS Aquafaba
• 30g your favourite vegan cheese, grated
• handful of pea shoots or rocket to finish it off