Nix the solids in a mortar and grind to a coarse powder. Extract by maceration or percolation using the alcohol.
The bitters may be prepared from this extract by mixing 1 ounce of the extract with 15 ounces of dilute alcohol (20%). Swiss Alpine Wine Bitters may be prepared in a similar manner by replacing the alcohol and water with sweet catawba or sherry wine.
A type of "Alpine Bitters" similar to Swedish bitters.