You can do this one of two ways:
The easiest way is to make a sugar wash and use the hearts from that- then add raspberries to a few jars and add the hearts to to those jars. I usually leave my fruit for a few weeks/months just depending on the fruit. I would taste after a week- and continue to taste weekly until you are happy with the flavor- then strain and drink.
The other options would be to actually mash with the fruit- if you go that way- I’d just follow what they do in their fruit tutorial- but sub raspberries for the strawberries- https://americanhomedistillers.com/how-to-make-strawberry-moonshine/
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you can see here–> http://www.fruitsmart.com/PDFs/TechnicalForms/SSBrixChart.pdf that they have a similar sugar content. The raisins are just added for some added nutrient for the yeast.