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1
Melt 2 tablespoons butter in a medium saucepan.
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2
Remove from the heat and mix in flour.
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3
Return to the heat and cook on low stirring constantly for 2 minutes.
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4
Keep mixing and add the milk in 1/4 cup lots, waiting for the sauce to thicken before adding more milk.
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5
Then add the cheese less the 1 cup.
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6
Stir until cheese is dissolved; add salt and pepper to your liking.
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7
In a large baking tray layer half the macaroni on the bottom (I always spray the pan with cooking spray to make cleaning up easier).
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8
Top that with half the tuna flakes.
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9
Pour half the cheese sauce on top of that and bang the tray on the bench (Hubby says this is an important step).
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10
Repeat the process.
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11
Don't forget to bang the tray on the bench again.
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12
Sprinkle the reserved grated cheese on top and then the breadcrumbs.
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13
Divide the reserved tbs butter into 4 and pop them on top.
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14
Bake in a moderate 180 degree oven until golden and crunchy on top - about 20-30 minutes.
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15
If you have prepared this earlier and put it in the fridge, cover the top with foil for the first 10 minutes and then take it off and cook a further 20-30 minutes.
