Preheat the oven to 190°c (170 fan/ Gas 5) and line a 12 hole muffin tin with muffin cases.
Place the dry ingredients in a large mixing bowl and stir to combine.
140 g Caster Sugar, 200 g Plain Flour, 1 teaspoon Bicarbonate of Soda
Whisk together the wet ingredients and vanilla extract until you get a smooth batter, then carefully mix this into the dry ingredients.
100 ml Natural Yogurt, 2 Eggs, 140 g Melted Butter, 1 teaspoon Vanilla Extract
Fold through the white chocolate chips and blackcurrants.
150 g Blackcurrants, 100 g White Chocolate Chips
Divide the muffin batter between 12 paper muffin cases in a 12 hole muffin tin, and bake in a preheated oven for 16 -18 minutes until golden brown. Allow the muffins to cool on a wire rack for 10 minutes before tucking in (if you can wait that long!).