This makes an attractive and enticing appetizer! Alas, I did not find high-quality chorizo, nor did I find quince paste, so I used the local grocer's chorizo (I didn't even know it had skin but it did! lol) and homemade blueberry preserves. I used a baguette, too. I did find a high-quality manchego cheese which added some delight to this! Thanks, French Tart! Made for TYM tag game.
I tried this and it was good but large. I tried open quarters of bread instead. Butter one side and smear membrillo on the other side. Chop the chorizo into small chunks. I fried them a bit to remove some fat and to brown the edges for extra flavor. Lastly, top with cheese. Bake in a medium oven for approx 5 mins or until the cheese is a bit brown.