Preheat the oven to 175C/350F
Line a muffin tray with 8 muffin cases and lightly grease each one.
Place the dates in a small bowl and add the boiling water and bicarb and allow to sit and soften for 30 minutes. Once softened, place the date mixture in a blender (or use a hand blender) and process until smooth.
Put all the wet ingredients (including the sweet potato and the date mixture) into a small bowl and whisk together lightly by hand. If the sweet potato is chunky blitz the wet ingredients in a food processor.
In another bowl, put all the dry ingredients and whisk together lightly by hand.
Pour the wet ingredients into the dry ingredients bowl and stir until combined.
Divide the mixture evenly into the greased cases.
Bake for 30 minutes or until cooked through.
Allow the muffins to cool in the tin before removing.
Store in an airtight container.
These muffins can be eaten warm as a special dessert with whipped cream and salted caramel date sauce.