Halve the grapes and if there are any seeds remove them. Prepare a 12 hole muffin tin by lightly oiling or buttering it, or use paper cases if you prefer.
Mix the eggs with the cooled melted butter then whisk in the milk. Whisk in the sugar or honey and a generous pinch of salt. Sift the flour into the mixture and then gently incorporate it with a spatula. Make sure there are no pockets of flour but do not overmix.
Fold in the cheese in a couple of movements.
Gently spoon the mixture into the prepared muffin tin until two thirds full, then gently push in 3 grape halves into each muffin. Bake for 25 to 30 minutes until risen, deep golden brown and firm to the touch.
Let the muffins cool a bit in the tin, then, when you are ready to eat, gently run a knife around the edge to release them from their holes.