Marmalade Vanilice with Budimka Marmalade

1. Pre-heat the oven to 175 °C and line a baking sheet with parchment paper.
2. Beat the butter and sugar until fluffy and light.
3. Add the egg yolk and vanilla and combine well.
4. Gradually add flour and salt until a smooth dough forms. If it is too soft, place it in the fridge for 15 minutes.
5. Shape balls the size of a walnut and arrange them on the baking sheet.
6. Using your thumb or the handle of a spoon, make an indentation in the middle of each ball.
7. Fill each with approximately half a teaspoon of marmalade.
8. Bake for 12–15 minutes, until the edges turn a light golden color.
9. Let them cool on the sheet for a few minutes, then transfer them to a wire rack to cool completely.

Dust with powdered sugar if desired.