Cauliflower N White Sauce

1-2 pkg frozen cauliflower or 1 head fresh
2 Tbs butter
2 Tbs all-purpose flour
1/4 tsp salt
1 cup milk

:Boil cauliflower in water until tender salt to taste melt butter over low heat mix in flour and salt stir to combine add in milk stirring constantly until thickened remove from heat when bubbly pour cauliflower into sauce and stir serve immediately.