Combine the milk, cream and salt in a large pot over medium heat.
Attach a candy thermometer and stir occasionally while heating the milk.
Once the temperature reaches 190° remove pot from heat.
Add the lemon juice and give it a gentle stir.
Allow the mixture to sit for 5 minutes.
Line a mesh strainer with several layers of cheesecloth and place on a large pot or bowl. (there will be a lot of liquid draining into the bowl)
After 5 minutes have passed, slowly and carefully pour the curdled mixture into the cheesecloth lined strainer.
Leave it to drain for 1½ to 2 hours.
Do not squeeze any of the remaining liquid out of the ricotta.
Transfer ricotta into an airtight container and store in the fridge. Use within 3-4 days.