Preheat oven to 200°C.
In a pan heat 2 tbs of butter and add sliced apples.
Add sugar and cinnamon and stir until the apple becomes slightly soft and changes colour.
In a bowl mix together flour, salt and egg replacer.
Add milk and whisk to form a lump free batter.
Grease a cast iron skillet or a 8" cake tin with butter.
Melt the remaining 2 tbs butter and add it to batter.
Pour it in the greased tin.
Spread apples evenly on the batter and drizzle the sauce over the batter.
Bake in oven for 20-25 minutes.
When the pancake is firm to touch, remove from oven and dust with icing sugar.
Slice it up and serve for breakfast or brunch.