For 10 large muffins, you will need:

Ingredients

250g white spelt flour

2 tsp baking powder

½ tsp bicarbonate of soda

1 tsp English mustard powder

125ml milk

125ml plain yoghurt

1 egg

100ml sunflower oil

125g grated mature Cheddar cheese plus extra for sprinkling on muffins

2-3 tsp Marmite or other yeast extract

5 cherry tomatoes, halved

Method

Preheat the oven to Gas mark 6 / 200°c.

Sift the flour, baking powder, bicarbonate of soda and mustard powder into a medium mixing bowl.

In a large jug, combine the milk, yoghurt, egg, oil, Marmite and cheese.

When the wet ingrdients resemble a batter, pour into the bowl containing the dry ingredients.

Stir very lightly until just combined.

Divide the mixture between the muffin cases.

Place half a tomato, cut side uppermost, on the top of each muffin and sprinkle with grated cheese.

Bake in the oven for 20 minutes until well risen and golden.