Dill butter: Remove butter from the fridge earlier to soften. Chop the anchovy fillets (anchovies) finely and crush with the back of a knife on a cutting board, do the same with garlic (you can grate it on a grater with small holes). Add the fillets and garlic to soft butter and mix well. Add the remaining ingredients: dill, olive oil, lemon juice, salt and pepper. Mix.
Spread bread with dill butter, cover with radish slices, decorate with dill and season with salt and freshly ground black pepper.