Added Francesinha recipe (#286)

src/francesinha.md

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+# Francesinha
+
+Francesinha is a traditional sandwich from the city of Porto. The francesinha in its special sandwich variation consists of sausage, fresh sausage, ham, cold meat and beef steak, covered with melted cheese.
+
+## Based Ingredients
+
+- bread
+- linguiça
+- ham
+- Portuguese cheese
+- beef meat
+
+## Sauce Ingredients
+
+- blonde beer
+- fried tomato sauce
+- port wine
+- beef broth
+- salted butter
+- onion
+- minced garlic
+- cornstarch
+- olive oil
+- piripiri (Portuguese chili)
+
+## Directions for the sauce
+
+1. In a big saucepan, heat the olive oil and add the garlic and the onions. Cook them until golden.
+2. Pour the beer and simmer until the alcohol evaporates. It's around 5 minutes.
+3. Pour the beef broth, the fried tomato sauce, the port wine, the Piripiri and the butter to give shine to the sauce. Add the cornstarch slowly avoiding lumps. Simmer for a couple of minutes until the sauce looks thick.
+
+## Directions for the Francesinhas
+
+1. Preheat the oven to 180 C (350 F)
+2. Cook the beef chopped in small strings. Season with salt and black pepper.
+3. Cook the linguiças sliced in half lengthwise.
+4. Take 4 slices of bread for each Francesinha. Cut the center of two slices to make room for the filling. The other two will be the bottom and top of the francesinhas.
+5. Fill the bread with the sausages, the beef and the ham roughly chopped. Cover the francesinhas with the cheese and melt in the oven for 5 minutes.
+6. Cover with the sauce and serve with french fries.
+
+## Contribution
+
+- Artur Mancha -- [Pleroma](https://pleroma.pt/@lisbonjoker)
+
+;tags: portuguese beef