I've tried SO MANY recipes for gluten free muffins and my kids pull their noses at all of them - until I tried this one! It's rather tweaked from the original to include ingredients I always have handy (and which we sell at Mother City Fish).
Preheat your oven to 165C and line your muffin tins with baking paper. I made my own liners, as the regular cupcake liners get completely stuck to the muffins! The baking paper liners come away beautifully - definitely recommended. To make liners: Cut out roughly 15x15cm square of baking paper and then shape them with a measuring cup. They'll pop up, but once you add the batter mix they'll weight down.
In a large mixing bowl, whisk together the eggs, almond butter, milk, sugar substitute, vanilla extract and lemon juice.
Mix in the almond flour, baking soda, and salt and mix well with a wooden spoon (don’t over-mix).
Fold in most of the blueberries, then spoon the batter into the muffin liners to make 9 muffins (I make mine quite small). Add the remaining blueberries to the top of the batter (I didn't have enough, so this batch isn't so pretty!).
Bake in the preheated oven for 18-20 minutes or until the tops are browning and a toothpick inserted near the center of one comes out clean. Allow to cool in the pan for 5 minutes, then transfer to wire racks to cool completely.
These muffins will keep nicely for 2 days our of the fridge. They'll last longer if you keep them in the fridge - or you can even freeze them.