Easy Vegan Quiche (With A Gluten-free Crust)

For the crust

• 2 cups rice flour
• 1 cup buckwheat flour
• 1 cup chickpea flour
• 1 ½ tbsp xanthan gum
• ½ tsp salt
• ½ cup vegan butter (preferably inn stick form rather than from the tub)
• 2 tbsp ground flaxseed soaked in ½ cup water for 10 minutes
• ½ cup ice cold water + 2 tbsp

For the tofu 'cheese' and onion filling

• 10 oz extra firm tofu
• ¾ cup plant based milk
• 3 tbsp nutritional yeast
• 2 cloves garlic
• ½ tsp salt
• 1 tsp cumin
• 1 tbsp Turmeric
• ½ tsp paprika
• ½ lemon juice of
• ½ tbsp olive oil
• 1 large red onion sliced
• ¼ cup chickpea flour