Steps
- Preheat the oven to 325°F / 160°C. Butter and line a deep 8½in / 22cm square cake pan. Beat 1 large egg with 4 tablespoons of milk.
- Gently heat 200g of golden syrup, 85g of black treacle, 85g of light brown sugar, and 200g of butter in a large saucepan until the sugar dissolves. Remove from the heat.
- Mix 100g of medium-ground oatmeal, 250g of self-rising flour, and 1 tablespoon of ground ginger. Stir into the syrup mixture, then stir in the egg and milk.
- Pour into the pan and bake for 50-60 minutes, until firm with a lightly crusty top. Cool completely in the pan before cutting into squares.