Sweet Potato Cupcakes with Peanut Brittle – DelicioUS!

Ingredients

• 1 large sweet potato (about 250g)
• 150 g all-purpose flour
• 50 g wholemeal flour
• 1⁄2 tsp baking powder
• 3⁄4 tsp baking soda
• 1⁄4 tsp salt
• 1⁄2 tsp ground cinnamon
• 1⁄4 tsp ground nutmeg
• 100 g butter, softened
• 65 g muscovado sugar
• 2 eggs
• 1 tsp vanilla extract
• 150 ml buttermilk
• 175 g full-fat cream cheese
• 50 g butter, softened
• 200 g icing sugar
• 100 g sugar
• 30 ml water
• 1 tbsp glucose syrup
• 90 g salted peanuts
• a pinch of baking soda