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How to make crumpets
Sift the flour and cream of tartar together into a bowl.
In a medium bowl, mix the yeast and the sugar together with of a cup of warm water, and let stand until the water becomes foamy.
Stir in the remaining lukewarm water.
Mix the yeast mixture into the flour mixture, and beat vigorously for two minutes, or until you get a thick, yet smooth batter. Cover the bowl with cling wrap and let it stand in a warm spot until the batter rises and then falls.