Step 1: Make the Panade. Combine breadcrumbs and milk. Stir and press until absorbed. Rest 2 minutes.
Step 2: Mix The Meat. Combine beef, pork, panade, egg, parmesan, garlic, and all seasonings. Mix with hands for exactly 2 minutes until completely uniform.
Step 3: Form Meatballs Portion into 40-gram balls using a kitchen scale. Roll lightly. Do not compress. Refrigerate on a lined tray for 10 minutes.
Step 4: Sear in Batches Heat the skillet over medium-high. Add sun-dried tomato oil. Sear meatballs in batches of 6 to 8, turning every 2 to 3 minutes, until deep brown all over, approximately 6 to 8 minutes per batch. Remove to a plate.
Step 5: Make the Sauce Base. Reduce to medium. Add butter to the same pan. Add garlic, stir for 40 to 45 seconds. Add tomato paste, cook 2 full minutes until brick-red. Add sun-dried tomatoes, stir 30 seconds.
Step 6: Make the Cream Sauce. Add broth, scrape all fond. Reduce by half over 2 minutes. Reduce to medium-low. Add cream, stir gently for 3 to 4 minutes. Add parmesan in four separate additions, stirring between each.
Step 7: Finish in the sauce. Return meatballs to the pan. Spoon sauce over each. Cover, simmer gently on low for 8 to 10 minutes until internal temperature reads 160°F (71°C).
Step 8: Rest and Serve. Remove from heat. Add fresh basil off the heat. Rest 3 minutes. Serve over pasta, gnocchi, or polenta.