How do I make ice cream

Stir sugar, cream and milk into a sauce pan over low heat until sugar has dissolved  Heat just until mix is hot and a small ring of foam appears around the edge. 2. Transfer cream mixture into a pour able container such as a large measuring cup. Stir in vanilla extract and chill mix thoroughly, at least two hours. 3. pour cold ice cream mix into an ice cream container, turn on the machine, and churn according to the manufacturers directions.  20 to 25 min. 4. When ice cream is softly frozen, swerve immediately or place a plastic wrap  directly on the ice cream and place in freezer to ripen, 2 to 3 hrs 

To make vanila ice cream
youll need

4 large egg yolks
2/3 cup sugar
1 1/2 cups whole milk
1 vanilla bean
1 teaspoon vanilla extract
1 1/2 heavy cream

its a long process

The answer is product modification

Answerdecrease the effective price of coffee received by ///and decrease the equilibrium quantity of coffee;