In a bowl, dissolve yeast in warm water. Stir in honey; let stand until bubbles form on surface, about 5 minutes. Add the milk, 2 tablespoon butter and mix well. Combine flour, baking powder and salt; add yeast mixture. Beat until smooth. Cover and let rise in a warm place until doubled, about 1 hour.
Brush griddle and 3-1/2 in. metal rings or open-topped metal cookie cutters with remaining melted butter. Place rings on griddle; heat over low heat. Pour 1/4 cup of batter into each ring.
Cook until bubbles begin to pop and the top appears dry, about 8. Remove rings. Turn crumpets; cook until the second side is golden brown and crumpet is cooked through, 6-8 minutes longer. Serve warm or let cool on a wire rack and toast before serving.