Preheat oven to 180°C.
In a bowl mix together wheat flour, oats, egg replacer, sugar, baking powder and baking soda.
In another bowl combine peanut butter, milk and vanilla.
Make a well in the centre of dry ingredients and pour the wet ingredients.
Mix gently with a spoon until incorporated.
Add choco chips and mix.
Line a muffin tin with paper liners and divide the batter between them.
Bake in the oven for 25-30 minutes or until a tooth pick inserted comes out with moist crumbs.
Serve warm.