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1
In a large bowl, place the diced chuck.
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2
Set a 10-inch saute pan over medium heat and add the bacon.
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3
Cook, stirring occasionally until the bacon is crispy and most of the fat has rendered, about 7 to 8 minutes.
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4
Add the onions to the pan and continue to cook until they are softened, about 4 to 5 minutes.
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5
Add the garlic and cook until fragrant, about 1 minute.
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6
Place the thyme in the pan and toss to combine.
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7
Remove the pan from the heat and pour over diced beef.
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8
Drizzle the beef with the Worcestershire and season with the salt and pepper.
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9
Toss the contents of the bowl to combine and set aside to marinate for 1 hour.
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10
Assemble a home grinder according to the manufacturer's instructions using a medium die for grinding.
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11
Grind the meat mixture and gently form into 4 patties, being sure not to handle the meat too much.
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12
Refrigerate until chilled, about 1 hour.
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13
Preheat and season a grill to medium heat.
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14
Remove the patties from the refrigerator and place on the grill.
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15
Cook for 7 to 8 minutes, turn over and place 2 slices each of the Cheddar on the burger.
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16
Continue to cook another 7 to 8 minutes for medium to medium rare, or until the burgers are cooked to the desired degree of doneness.
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17
Place the burgers on the bottom of each of the 4 toasted buns.
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18
Dress with the lettuce and tomatoes, and add the mayonnaise, ketchup, mustard and pickles according to taste.