Freefrom carrot and orange breakfast muffins

Ingredients

• 2 oranges
• 3 eggs
• 100g / 4 oz caster sugar
• 250g / 9 oz brown rice flour
• 2 tsp gluten-free baking powder
• ½ tsp bicarbonate of soda
• pinch of salt
• 100ml/ 3.5 floz / 3/8 cup rice or other dairy free milk
• 1 tsp vanilla essence
• 2 medium carrots, peeled and finely grated
• generous handful of sultanas or other dried fruit
• generous handful of sunflower seeds or other seeds or chopped nuts