Oat and Cashew Pasties

Name: Oat and Cashew Pasties
Prep time: 1 h
Cook time: 2 h 30 min
Total time: 2 h 30 min
Yield: 80 pieces
Ingredients: 150 g rolled oats; water; 100 g cashew nuts; 15 g fresh parsley; 150 g onions; 250 g tinned chopped tomatoes; 50 g red peppers; 50 g olive oil; 4 garlic cloves; 2 tsp fine sea salt; 3 large eggs; 1 tsp dried oregano; 800 g water; 1 tsp fine sea salt; 600 g potatoes; 240 g unsalted butter; 600 g strong white bread flour; 3 egg yolks