4 egg yolk
2 c milk
1 c heavy cream
1/4 c dried lavender
2/3 c sugar
In a medium saucepan, combine milk and lavender. Bring to a gentle boil, cover, and remove from heat. Let steep for 5 minutes. Strain mixture, reserving milk and discarding lavender.
Combine egg yolks and sugar in the bowl of an electric mixer. Beat on medium-high speed until very thick and pale yellow, 3 to 5 minutes. Meanwhile, return milk to a medium saucepan, and bring to a simmer over medium-low heat.
Add half the milk to egg-yolk mixture, and whisk until blended. Stir mixture into remaining milk, and cook over low heat, stirring constantly, until mixture is thick enough to coat the back of a wooden spoon.
Remove from heat, and immediately stir in cream. Strain mixture into a medium mixing bowl set in an ice-water bath, and let stand until chilled, stirring from time to time. Freeze in an ice-cream maker according to manufacturer's instructions. Store in an airtight plastic container up to 2 weeks.