Start by cooking the macaroni noodles according to the package directions until they are al dente. This usually takes around 8-10 minutes. Once cooked, drain the noodles and set them aside.

While the noodles are cooking, you can prepare the sauce. Melt butter in a saucepan over medium heat, making sure to whisk continuously to prevent the butter from burning. Once the butter has melted, gradually add in the flour while continuing to whisk until the mixture turns light brown. This should take about 2-3 minutes.

Once the flour has cooked, remove the saucepan from the heat and slowly add in the milk, stirring constantly. It's important to add the milk gradually to avoid lumps forming. Return the saucepan to the heat and cook the sauce until it thickens, stirring frequently. This should take around 5-7 minutes.

Once the sauce has thickened, add in the salt, pepper, garlic powder, and ground mustard. Stir well to combine.

Next, add the grated sharp cheddar cheese to the sauce, stirring continuously until the cheese is completely melted and the sauce is smooth.

Add the cooked macaroni noodles, sliced jalapeno cheddar sausages, and chopped jalapenos to the cheese sauce, and stir everything together until everything is evenly coated in the sauce. Leave it over the heat for a few minutes until the sausages are warmed throughout.

Finally, remove the pan from the heat and serve the Jalapeno Cheddar Sausage Mac & Cheese while it's still hot and creamy. Enjoy!