Steps
Step 1
Bring a pot of water with a pinch of salt to a boil. Cook pasta according to box instructions, subtracting 2 minutes from the cook time. Meanwhile in a separate pan melt butter on medium heat.
Step 2
When butter starts to bubble, add flour and mix together. Add milk slowly until the entire amount is mixed in and no clumps remain.
Step 3
Add parmesan cheese to milk mixture 1/4 cup at a time until completely smooth. Add salt and pepper to taste.
Step 4
Zest your lemon and add to the cheese mixture, then add half a lemon's juice.
Step 5
Once pasta is cooked, add pasta to mixture and 1/8 cup of pasta water. Reserve 1/2 cup of pasta water to add later if needed.
Step 6
Mix together until pasta is coated. Adding more pasta water to thin out the mixture as necessary.
Step 7
Add salt and pepper to taste, then dish out, topping with parsley, gorgonzola crumbles and remaining lemon juice.
