Ingredients
- 350g self-raising flour, plus more for dusting
- ¼ tsp salt
- 1 tsp baking powder
- 85g cold butter, cut into cubes
- 4 tbsp golden caster sugar
- 150g pot natural full-fat yogurt
- 4 tbsp full-fat milk
- 1 tsp vanilla extract
- 1 egg beaten with 1 tbsp milk, to glaze