Steps

1. In a microwave-safe bowl, combine 10g Butter and 1 tbsp All-purpose Flour.
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2. Microwave without covering.
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3. Remove from microwave and mix well until no dry flour remains. [Key Tip!] This method allows you to make it easily without worrying about burning or controlling the heat.
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4. Gradually add 120ml Milk, mixing well until incorporated.
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5. Add the remaining milk all at once and mix.
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6. Microwave again.
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7. Remove from microwave and mix well until slightly thickened. [Key Tip!] Using the microwave makes this process effortless.
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8. Continue microwaving in 30-second intervals, stirring in between, until desired thickness is reached.
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9. Once the desired consistency is achieved, stir in a pinch of Salt to complete the white sauce. [Key Tip!] The sauce will thicken further as it cools, so consider this when adjusting the consistency. For larger batches of sauce for gratins or stews, adjust the ingredients and cooking time accordingly.
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10. Spread a generous amount of the prepared white sauce on one side of 2 slices of Bread.
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11. Place 2 slices of Cooked Ham on top of the white sauce.
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12. Spread white sauce on one side of the other slice of bread.
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13. Stack the bread slice with sauce-covered side down onto the ham, creating a sandwich.
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14. Generously spread white sauce on the top surface of the assembled sandwich.
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15. Top generously with Shredded Pizza Cheese (to taste).
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16. Place in a toaster oven and bake until golden brown and bubbly to your liking.
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17. Cut the baked Croque Monsieur.
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18. Garnish with Coarsely Ground Black Pepper (to taste), if desired.
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