Add steak tartare recipe (#769)

* add steak tartare recipe

* typo fixed

content/steak-tartare.md

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+---
+title: Steak Tartare
+tags: ['beef', 'raw', 'quick']
+date: 2022-05-22
+author: dunkelheit-biz
+---
+
+Steak Tartare is a dish prepared using raw ground / minced beef and egg yolk. A popular dish in Europe, this recipe is a good stepping stone into the world of raw meats, organs and pates.
+
+- ⏲️ Prep time: 10 min
+- 🍽️ Servings: 4
+
+## Ingredients
+
+- Ground Beef (Lean as possible)
+- Eggs
+- Onion or Shallots
+- Capers
+- Gherkin / Cornichons
+- Parsley (Optional)
+- Ketchup (Optional)
+- Mustard (Optional)
+- Worcestershire Sauce (Optional)
+
+## Directions
+
+1. Dice your onions or shallots.
+2. Finely slice your cornichons.
+3. Rinse, drain and chop your capers.
+4. Chop parsley. (Optional)
+5. Chop ground beef into smaller pieces.
+6. Add the above to a mixing bowl and mix with hands.
+7. Add ketchup, mustard or Worcestershire sauce as needed and mix further. (Optional)
+8. Separate an egg yolk from the whites.
+9.  Loosely roll some of the mixture into a ball in your hand and place onto a plate and press softly to form a bowl shape, add egg yolk to indentation.
+10. Serve, you may now add salt and pepper as desired.

data/authors/dunkelheit-biz.json

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+{
+	"name": "Dunkelheit Citizen",
+	"website": "https://dunkelheit.biz",
+	"btc": "bc1qrpetnee8y0wdsee8fg6vjs9u85uw45fgnefs0d",
+	"xmr": "87ukrCxsbK79rQbGwutzTmE4RDPiayn3xK5JT63iiSks5Q9TMCsXzUibXEea1q6x6ij6u2UDxzXpNBU5bP4u8Wz34esoLRG",
+	"donate": "https://dunkelheit.biz/donate"
+}