Homemade Sausage Rolls with Soft Yogurt Dough

Ingredients

• 1×7 grams sachet of dried yeast
• 1 teaspoon caster sugar
• 4 tablespoons water, lukewarm
• 500 grams plain flour, plus extra for dusting
• ½ teaspoon salt
• 100 millilitres milk, at room temperature
• 200 millilitres yogurt, at room temperature
• 100 millilitres vegetable oil, at room temperature
• 14 cocktail sausages or 7 larger ones cut in half
• 1 egg yolk
• 1 tablespoon milk
• 2 tablespoons sesame seeds