Set the oven at 200C/gas mark 6. Line a 12-hole bun or muffin tin with paper cases.
Sieve together the flour and baking powder and stir in the sugar. Grate the apple. Break the eggs into a small bowl, beat lightly then stir in the kefir.
Fold the flour and egg mixture together then add the grated apple and blackberries, then half of the pumpkin seeds and the oats.
Spoon the batter into the bun cases, sprinkle over the reserved pumpkin seeds and oats, then bake for approximately 25 minutes till risen. Leave to rest briefly before eating.