Cook the peas in water seasoned with salt and pepper until tender

Mix flour and sugar together

Add to the water while it is boiling, and stir until mixed in well

Add milk, a little at a time

Stir and continue to cook while it thickens

If the mixture is too thick, add a little more milk at a time, stirring and simmering for a little bit

Remove from heat and add butter

Stir until butter is dissolved

Serve