Steps

1. In a microwave-safe bowl, add 20g of salted butter. Microwave on 600W for 20 seconds until melted, then mix well.
   🕒 00:01
2. Sift 20g of all-purpose flour into the melted butter and whisk until no lumps remain.
   🕒 00:09
3. Gradually add 200ml of milk, whisking quickly to achieve a smooth consistency each time. Once the milk mixture is thin, add the rest and mix well.
   🕒 00:13
4. Add 1/2 tsp of granulated consommé and mix well.
   🕒 00:28
5. Loosely cover with plastic wrap and microwave on 600W for 1 minute 30 seconds. After heating, remove and mix well.
   🕒 00:32
6. Loosely cover again with plastic wrap and microwave on 600W for 1 minute. After heating, remove and mix well.
   🕒 00:38
7. Loosely cover once more with plastic wrap and microwave on 600W for 1 minute. After heating, remove and mix well.
   🕒 00:43
8. Loosely cover again with plastic wrap and microwave on 600W for 1 minute.
   🕒 00:52
9. Add 20g of melting cheese to the hot sauce and mix until melted.
   🕒 00:56
10. Cover the surface of the sauce with plastic wrap, pressing it directly onto the sauce to prevent a skin from forming, and let it cool to room temperature.
    🕒 01:00
11. Cut 4 ham slices in half.
    🕒 01:07
12. On 2 of the 4 bread slices, place 2 half-cut ham slices each.
    🕒 01:09
13. Place melting cheese on top of the ham.
    🕒 01:12
14. Spoon the white sauce (cooled to room temperature) over the cheese.
    🕒 01:14
15. Place the remaining 2 bread slices on top to form sandwiches.
    🕒 01:16
16. Place the sandwiches on a baking sheet.
    🕒 01:18
17. Spread white sauce on top of the bread slices.
    🕒 01:20
18. Lightly sprinkle with black pepper.
    🕒 01:22
19. Top with melting cheese.
    🕒 01:24
20. Prepare the second sandwich in the same way.
    🕒 01:26
21. Toast in a toaster until golden brown.
    🕒 01:28