Basic Mason Jar Ice Cream

https://www.nytimes.com/2020/05/09/at-home/virus-make-ice-cream-in-a-mason-jar.html?mc=aud_dev&ad-keywords=auddevgate&subid1=TAFI&ad_name=INTER_20_XXXX_XXX_1P_CD_XX_XX_SITEVISITXREM_X_XXXX_COUSA_P_X_X_EN_FBIG_OA_XXXX_00_EN_JP_NFLINKS&adset_name=https%3A%2F%2Fwww.nytimes.com%2F2020%2F05%2F09%2Fat-home%2Fvirus-make-ice-cream-in-a-mason-jar.html&campaign_id=23845255733690063&fbclid=IwAR1OHsNGPyeUIskKEUNZ8H8ChWe2knhSp0ahvy6ajPOhmncYsPvu40ERjbI