Tarte Bourguignonne - Cookidoo® – the official Thermomix® recipe platform

Ingredients

• 85 g butter
• 250 g plain flour
• 1 tsp fine sea salt
• 100 g water
• 100 g Gruyère cheese
• 300 g onions
• 30 g olive oil
• 400 g beef mince
• ¼ tsp ground black pepper
• 40 g plain flour
• 40 g unsalted butter
• 400 g milk
• 1 pinch fine sea salt
• 1 pinch ground black pepper