Preheat the oven to 200C/180C Fan/Gas 6. Line about 7 muffin tin holes.
In a large bowl, combine the dry ingredients (flour, baking powder, sugar).
Make a well, and pour in the liquid ingredients (milk, butter, oil and egg). Stir gently with a wooden spoon until just combined. Fold in the berries gently.
Scoop 1 small tbsp of batter into each of the lined muffin holes. Add 1 tsp Peanut Butter and 1 tsp Jam into each. Then add enough batter to cover the filling - don't fill above 2/3rds full.
Bake for 18-20 minutes, until golden brown and smelling delicious! Let cool on a wire rack before serving (although eating whilst still warm is definitely recommended).
