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1
Bring a large pot of water to boil for the pasta.
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2
In a large heavy bottom skillet, cook bacon until crisp.
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3
Remove bacon from pan to drain on paper towels.
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4
Pour off any excess bacon grease, leaving about 2 tablespoons.
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5
Saute onions and garlic until tender, 5 minutes.
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6
Sprinkle flour over onions and garlic and stir to create a paste.
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7
Slowly pour in milk and whisk to remove any lumps.
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8
Turn off heat.
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9
(This should look like a thick sauce or even closer to a paste.
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10
Dont worry, thats normal and how its supposed to look!)
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11
Stir in half the cooked bacon into the sauce.
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12
Set aside.
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13
Drop pasta into salted, boiling cooking water.
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14
In a large bowl, stir parmesan cheese, egg and egg yolk together.
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15
Cut butter into small pats.
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16
Remove about 1 cup of pasta water and drain pasta completely.
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17
Immediately pour hot pasta into a large bowl with the egg mixture.
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18
Using tongs, start to toss pasta.
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19
Pour in onion paste and continue to toss.
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20
It is at this point where you can start to pour in some reserved cooking liquid to get the smooth saucy consistency youd likemake sure to go slow!
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21
Stir in pats of butter with salt and pepper.
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22
Continue to toss until butter has melted.
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23
Serve immediately with remaining cooked bacon and more parmesan cheese.
