Vanilla mug cake

• butter↗30g g
• caster sugar↗2 ½ tbsp tbsp
• plain flour↗6 tbsp tbsp
• baking powder↗¼ tsp tsp
• milk↗3 ½ tbsp tbsp
• vanilla↗½ tsp tsp
• icing sugar↗4 tsp tsp
• sprinkles↗

  to serve (optional)

Step-by-step instructions

1. 1

   Put the butter in a microwave-safe mug and microwave on high for 30-45 seconds until melted. Stir in the caster sugar, flour, baking powder, milk and vanilla until smooth. Microwave on high for 1 min-1 min 15 seconds until cooked through and a skewer inserted into the middle comes out clean. Set aside while you make the icing.

2. 2

   Combine the icing sugar with enough water to create a drizzly consistency, then spoon over the cake (it will melt a little with the heat of the sponge). Scatter over the sprinkles, if using, and serve.