For a native German speaker fluent in English, the best approach is to use a German-language textbook as your main course for fast grammar explanations, then supplement with English-language materials for listening and vocabulary. Look for resources that explicitly build on German, such as German-published Dutch courses (e.g., from publishers like Hueber or Buske) or bilingual contrastive grammars. Avoid generic English beginner courses that re-explain concepts you already know from German.

Here is a practical plan:

  1. Main course: Choose a German-language textbook that moves quickly through grammar. German publishers often produce concise Dutch courses for German speakers, which assume knowledge of case systems, verb-second word order, and gendered nouns. Check reviews or previews to see if it covers the key differences (e.g., Dutch "de/het" versus German "der/die/das", and false friends like "wie" vs "wie").

  2. Listening and vocabulary: Use English-language resources for input, since English has more high-quality podcasts, apps, and graded readers. This avoids the confusion of mixing two teaching approaches for grammar. For example, use a German textbook for structure and English podcasts or YouTube channels for immersion.

  3. Contrastive grammar: Find a short Dutch-German contrastive grammar or a website that lists differences. This is more efficient than a full course and helps you avoid German interference.

  4. Evaluate Nederlands in gang / in actie: These are Dutch-language methods used in courses. They are good for immersion but may not leverage your German. If you use them, pair with a German grammar reference for quick explanations.

Honest tradeoffs: German resources are fewer and may have older layouts or less engaging exercises. English resources are plentiful but often too slow for you. Mixing can work if you keep roles clear: German for grammar, English for input. Do not try to follow two full courses simultaneously.

Next steps: Preview a German textbook's table of contents and sample pages to see if it assumes German knowledge. Check online forums for reviews from German speakers learning Dutch. Consider a tutor who speaks German and can point out contrasts. For structured practice, Dutch Fluency offers a German-aware approach, but verify it fits your level. Finally, start with a placement test to skip beginner material you already know.