In a small saucepan, combine 1/4 cup of the orange marmalade with the raisins and prunes.
Heat the mixture over low heat, stirring occasionally, until it comes to a simmer.
Cover the saucepan and let it simmer for about 10 minutes.
Remove the cover and continue to simmer for an additional 5 minutes, stirring occasionally.
Allow the mixture to cool.
Stir in the remaining 1/2 cup of orange marmalade, the chopped walnuts, fresh orange juice, and water.
Arrange the slices of fresh ham in an attractive manner on a serving platter and place the orange-walnut glaze in a small serving bowl.
Notes / Tips / Wine Advice:
Serve this delectable dish at room temperature to savor the harmonious blend of flavors.Note: This tapa is perfect for sharing with friends and family, and it's a delightful balance of sweet and savory that will be sure to impress your guests. Enjoy!